“The work at UCSB was supported by Grant No. FA8718-08-0005 under the DARPA-VIGIL program and the Solid State Lighting and Energy Center (SSLEC). R.S. was funded as a part of the Center for Energy Efficient Materials, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Basic Energy Sciences under Award No. DE-SC0001009.”